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Knightly Glade

#21a33a
Notes

Knightly Glade (#21A33A) is a true green with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (132°, 66%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21a33a
RGB
rgb(33, 163, 58)
HSL
hsl(132, 66%, 38%)
HWB
hwb(132 13% 36%)
OKLCH
oklch(62.7% 0.181 145.6)
HSV
hsv(132, 80%, 64%)
LAB
lab(58.81% -55.37 43.79)
LCH
lch(58.81% 70.59 141.66)
CMYK
cmyk(80%, 0%, 64%, 36%)

Etymology

Knightly
adjective

Old English cniht, young man / knight — adjectival suffix -ly. As a color modifier, knightly implies a saturated-and-chivalrous-and-medieval quality, the deep-rich color of medieval-English-and-French knight-and-squire armorial-bearings-and-livery tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and cavalier.

Glade
noun

An open clearing in a forest — often grassy, where sunlight reaches the ground unobstructed. The Old English glæd (bright) names the brightness of the clearing relative to its surrounding shade. Glade color refers to a sunlit forest clearing in summer: a saturated, slightly yellow-green with the matte finish of sun-bright grass-and-fern. Lighter than bosco.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

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Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#21a33a
Original
#a6932e
Protanopia
#978a43
Deuteranopia
#009f8d
Tritanopia
#808080
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
3.30:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.36:1

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